The jury heard Pogmore made four recordings from the aircraft between 2007 and 2012, including two of people sunbathing naked, one of a couple of naturists and another of his friends having sex on their patio.

Image copyrightPAImage caption Former police officer Adrian Pogmore admitted he knew the married couple through the “swinging scene” and that he had sex with the woman

Mr Loosemore acknowledged he heard an “exclamation” in the cockpit and caught sight of “some nudity” on the camera screen.

He reacted by swiftly flying the helicopter away and continued looking for nuisance motorbikes, he said in court.

The father-of-three said his role “was as a civilian taxi driver” for police air observers.

The pilot, who had only been flying with the force for 18 months at the time of the flight in July 2008, told the jury he did not know Pogmore was “into swinging or voyeurism” then and was unaware police colleagues referred to Pogmore as the “team deviant”.